Q4 of 106 Page 383

In which of the following transitions will the wavelength be minimum?

We know from Rydberg's equation the wavelength λ of emission spectrum when electrons move from n₂ energy level to n₁ energy level, is given by,




For option (a), we have


For option (b), we have


For option (c ), we have


For option (d), we have


Thus, in option (d) 1/λ has the maximum value and thus λ is minimum.


Hence, option (d) is the correct answer.

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